男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影
Global EditionASIA 中文雙語Fran?ais
China
Home / China / This Day That Year

This Day, That Year: Jan 17

China Daily | Updated: 2019-04-08 16:00
Share
Share - WeChat

Editor's note: This year marks the 70th anniversary of the founding of New China.

On Jan 17, 1966, the first Chinabuilt J-7 fighter made its maiden flight.

An item in China Daily on Nov 16, 2009, showed three J-7 fighter jets in flight during an air show held by the People's Liberation Army's Air Force to mark the 60th anniversary of its foundation.

The J-7 was certified as an operational aircraft by the Chinese military in June 1967.

Despite production being terminated in 2006, the aircraft is still in operation with a number of air forces worldwide.

The J-7 is a single-engine, lightweight fighter jet designed and manufactured by Chengdu Aircraft Corp. Its design is based on its predecessor, the MiG-21.

In an attempt to meet the operational requirements of the defense forces, the corporation has developed dozens of variants of the J-7.

In recent decades, China's aviation industry has made remarkable progress, designing and building two fifth-generation stealth aircraft - the J-20 and the FC-31.

The J-20, designated as a future pillar of the PLA Air Force, made its maiden flight in January 2011, and was declassified in November 2016. It was commissioned to the PLA Air Force last year, becoming the world's third stealth fighter jet to enter service, after the F-22 and the F-35 of the United States.

The FC-31, which appears to have been developed for export, was first flown in October 2012 and has taken part in several Zhuhai Airshows, the nation's biggest, in addition to arms shows overseas.

To give the nation's fighter jets better combat capability, China has mastered a field of cutting-edge aviation technology that has been dominated by the United States and Russia.

The technology, known as thrust vector control, can extensively boost a fighter jet's maneuverability, providing advantages in aerial combat, especially during dogfights.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 罗定市| 葵青区| 独山县| 崇信县| 汉川市| 库车县| 休宁县| 福州市| 保亭| 项城市| 内丘县| 荣昌县| 和平县| 库车县| 赤峰市| 阜阳市| 蓝田县| 长汀县| 长岛县| 自治县| 庆阳市| 个旧市| 海兴县| 东源县| 鹿邑县| 大兴区| 阳西县| 五华县| 遂平县| 报价| 梁河县| 朝阳市| 凭祥市| 景宁| 博爱县| 石屏县| 松溪县| 西安市| 延安市| 元阳县| 武乡县| 丰都县| 安塞县| 乐至县| 双峰县| 孟津县| 丹江口市| 沅陵县| 阜新市| 原平市| 江川县| 修水县| 邯郸市| 渑池县| 灵寿县| 兴仁县| 和平区| 石景山区| 奎屯市| 滦南县| 绥宁县| 沐川县| 永寿县| 申扎县| 游戏| 通河县| 兰坪| 开阳县| 上林县| 湖北省| 姚安县| 吴忠市| 泰宁县| 扬中市| 德江县| 搜索| 正阳县| 新平| 延边| 五家渠市| 桂东县| 四会市|